Abstract:
In an intake manifold in which air introduced from an introduction port is fed to each cylinder of an engine by use of multiple ducts which are disposed parallel, a communication space section which provides communication between the introduction port which introduces air and inlets of the ducts is provided, this communication space section is formed so as to extend in a direction in which the inlets of the ducts are arrayed, a funnel section which causes the inlets of the ducts to be arrayed on a same surface is formed in this communication space section, and this funnel section is formed from a single member only in the main body section by providing mating surfaces of the main body section and the duct component member off the funnel section.
Abstract:
The present invention relates to an intake manifold or distributor for a thermal engine constituted by at least two parts (1, 1′) assembled together, in particular two parts made from thermoplastic material assembled by vibration welding and comprising an intake or plenum chamber connected, for fluidic communication, to intake pipes opening into the chamber. Intake manifold or distributor for a thermal engine characterized in that it comprises an additional attached piece (4) comprised, on the one hand, of a main body forming a support and fitting plate and, on the other hand, of pipe portions (6, 6′) produced in one piece with said body (5) and defining at least the inlet orifices (6, 6′) of said pipes (3), said attached piece (4) being positioned and, if applicable, fixed, prior to assembly of said at least two parts (1, 1′) forming said manifold or distributor on or in one of these parts.
Abstract:
A method for forming an intake manifold including a flame arrestor for an internal combustion engine, and an intake manifold for an internal combustion engine including a base member, a cover member, and a flame arrestor, wherein the flame arrestor is inserted into the base member or the cover member and fastened into a desired location by the connection between the base member and cover member. The cover member and base member are connected together by vibration welding or any other suitable connection.
Abstract:
An EGR system has an EGR distributor in the form of a single plate integrally equipped with an exhaust gas passage and a coolant passage for recirculated exhaust gas therewith. The lengths of each exhaust gas passages for the recirculated exhaust gas to reach each cylinder are equal to each other, whereby the amount of the exhaust gas recirculated to each intake passage is same and the overall efficiency of the EGR system is improved. The EGR distributor is preferably manufactured in the form of a single component by AL die casting method.
Abstract:
An intake manifold assembly (100 includes an inner shell (12) that is inserted into an outer shell (14), and a cover (25) that seals the open end (38) of the outer shell (14). The inner shell (12) includes dividers (16) that form air passages (18). A laser device (40) is traversed along the outer surface of the outer shell (14) along a predetermined path (44) that corresponds with the position of the inner shell (12) such that a desired laser weld joint (45) is formed The intake manifold assembly (10) of this invention includes features and methods of assembly that improve the laser weld joints utilized to assemble the plastic intake manifold assembly (10). Both design details and clamping detail are described, every known configuration of U type manifolds can be made by this technique. The technique provides high value and low cost. High reliability is a well known feature of laser welding.
Abstract:
An gas directing/exhaust system and method are provided. The gas directing system has an gas directing mechanism. The gas directing mechanism has different embodiments. In some embodiments, the gas directing mechanism has a first pathway and a second pathway. In other embodiments, the gas directing mechanism has a second pathway and one or more first pathways located inside of the second pathway. In other embodiments, the gas directing mechanism has the first and second pathways and a third pathway inside of the second pathway.
Abstract:
An engine intake manifold assembly (10), including a first component (12) having a first mating surface (14) and a second molded plastic component (16) having a second mating surface (18). The second molded plastic component (16) is adhesively bonded to the first component (12) with an adhesive (20). The adhesive bond strength exceeds the strength of the second molded plastic component (16).
Abstract:
An intake device (1) for an internal combustion engine including a main body (2) and cover element (3; 20) which are securely connected to one another. Main body (2) and cover element (3) form intake pipes (4, 5, 6, 7) of in intake manifold. The cover element (3; 20) includes a plurality of individual shells (14, 15, 16, 17; 24, 25, 26, 27), which are connected to one another. Each individual shell (14, 15, 16, 17; 24, 25, 26, 27) forms a wall section of a respective intake pipe (4, 5, 6, 7) of the intake device (1). A flexible connection element (22) is arranged between two successively adjacent individual shells (25, 26) to compensate for tolerances between the cover element (3) and the main body (2).
Abstract:
In an air intake apparatus of an internal combustion engine, disassembling a surge tank made of resin with an intake air control valve into divided pieces, and bonding the divided pieces by vibration adhesion, for preventing the intake air control valve from breaking or characteristic thereof from changing during the vibration adhesion or for ensuring a sealing property between parts, an inner space in the surge tank is divided into first and second chambers by providing a horizontal partitioning wall within the surge tank. The surge tank is divided into a middle piece made of resin and formed integrally with the partitioning wall, a lower piece made of resin, and an upper piece also made of resin, and these three pieces are bonded by the vibration adhesion to form the surge tank. A communicating hole for making the first chamber communicate with the second chamber is formed in the partitioning wall, and a valve body for opening and closing the communication hole is provided in the communicating hole. A drive device for opening and closing the valve body is provided on the middle piece.
Abstract:
An engine intake manifold assembly (10), including a first component (12) having a first mating surface (14) and a second molded plastic component (16) having a second mating surface (18). The second molded plastic component (16) is adhesively bonded to the first component (12) with an adhesive (20). The adhesive bond strength exceeds the strength of the second molded plastic component (16).